James Harrison (17 April 1816 – 3 September 1893) was a Scottish Australian newspaper printer, journalist, politician, and pioneer in the field of mechanical refrigeration.

Harrison founded the Geelong Advertiser newspaper and was a member of the Victorian Legislative Council and Victorian Legislative Assembly. Harrison is also remembered as the inventor of the mechanical refrigeration process creating ice and founder of the Victorian Ice Works and as a result, is often called "the father of refrigeration". In 1873 he won a gold medal at the Melbourne Exhibition by proving that meat kept frozen for months remained perfectly edible.

James Harrison was born at Bonhill, Dunbartonshire, the son of a fisherman. Harrison attended Anderson's University and then the Glasgow Mechanics' Institution, specialising in chemistry. He trained as a printing apprentice in Glasgow and worked in London as a compositor before emigrating to Sydney, Australia in 1837 to set up a printing press for the English company Tegg & Co. Moving to Melbourne in 1839 he found employment with John Pascoe Fawkner as a compositor and later editor on Fawkner's Port Phillip Patriot. When Fawkner acquired a new press, Harrison offered him 30 pounds for the original old press to start Geelong's first newspaper. The first weekly edition of the Geelong Advertiser appeared November 1840: edited by 'James Harrison and printed and published for John Pascoe Fawkner (sole proprietor) by William Watkins...'. By November 1842, Harrison became sole owner.

Harrison was a member of Geelong's first town council in 1850 and represented Geelong in the Victorian Legislative Council from November 1854 until its abolition in March 1856. Harrison then represented Geelong 1858–59 and Geelong West 1859–60 in the Victorian Legislative Assembly.

As an editor he was an early advocate for tariff protection which later he brought to prominence when he was editor of The Age under the proprietorship of David Syme.^{[citation needed]} But his rise ceased abruptly in 1854 after a controversial libel suit was brought against him by the Crown Prosecutor George Mackay whose evident drunkenness on duty Harrison had editorially deplored. The jury brought in a verdict for Mackay with Harrison to pay £800 damages. In 1862, although his assets were worth £22,000, he had to sell the Advertiser to escape bankruptcy.^{[citation needed]}

It was while he owned this paper from 1842 to 1862 that his interest in refrigeration and ice-making began to develop. Whilst cleaning movable type with ether, he noticed that the evaporating fluid would leave the metal type cold to the touch.^{[citation needed]}

Harrison's first mechanical ice-making machine began operation in 1851 on the banks of the Barwon River at Rocky Point in Geelong.

Because of the cost of importing ice from the United States and Norway for use in ice houses, Harrison's device became a financially viable alternative for the remote Victoria colony, and his first commercial ice-making machine followed in 1854, along with a patent for an ether refrigeration system granted in 1855. This novel system used a compressor to force the refrigeration gas to pass through a condenser, where it cooled down and liquefied. The liquefied gas then circulated through the refrigeration coils and vaporised again, cooling down the surrounding system. The machine employed a 5 m (16 ft.) flywheel and produced 3,000 kilograms (6,600 lb) of ice per day. In 1856 Harrison went to London where he patented both his process (747 of 1856) and his apparatus (2362 of 1857).